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Video Text Cell

Overview​

LMFeedVideoTextCell is a subclass of LMPostWidgetTableViewCell designed to display text content in video feed posts within the LikeMinds Feed module. It features an expandable/collapsible text area with a "See More" button, dynamic height calculation, and support for rich text interactions such as URLs, hashtags, and routes. The cell is styled for video feeds, including a transparent background and white text.

File Location:
LMFeedVideoTextCell.swift

Functionality​

Protocols​

LMFeedVideoTextCellHeightDelegate​

A protocol for notifying height changes when the cell expands or collapses:

  • videoTextCell(_ cell: LMFeedVideoTextCell, didChangeHeight height: CGFloat): Called when the cell's height changes due to expansion or collapse.

UI Components​

  • postText: An LMFeedTextview displaying the post's body text. Supports rich text, links, hashtags, and routes. Styled for video feeds (white text, shadow, transparent background).
  • seeMoreButton: An LMFeedButton that toggles expansion/collapse of the text area. Shows "...See More" or "view less" as appropriate.

Data Variables​

  • heightDelegate: A weak reference to an instance conforming to LMFeedVideoTextCellHeightDelegate for height change notifications.
  • expandedState: A Bool indicating whether the cell is expanded.
  • postID: An optional String that stores the identifier of the post (inherited).

Methods​

  • configure(data: LMFeedPostContentModel): Configures the cell with the provided post data. Sets the text, resets expansion state, and updates the "See More" button visibility.
  • toggleExpansion(): Expands or collapses the text area, animating the height change and updating the button title.
  • calculateExpandedHeight(): Calculates the required height for the expanded state based on the text content.
  • updateSeeMoreButtonState(): Shows or hides the "See More" button depending on the text length.
  • tappedTextView(tapGesture: UITapGestureRecognizer): Handles taps on the text view, detecting URLs, hashtags, routes, or post taps.
  • didTapURL(url: URL): Called when a URL is tapped in the text view.
  • didTapHashTag(hashtag: String): Called when a hashtag is tapped in the text view.
  • didTapRoute(route: String): Called when a route is tapped in the text view.
  • didTapSeeMoreButton(): Called when the "See More" button is tapped. Toggles expansion/collapse.

Action Handlers​

  • didTapSeeMoreButton(): The selector method for the "See More" button's tap action. Toggles the expanded state and notifies the delegate of height changes.

Customisation​

CustomVideoTextCell.swift
class CustomVideoTextCell: LMFeedVideoTextCell {
    override func setupAppearance() {
        super.setupAppearance()
        contentView.backgroundColor = .black
        postText.font = UIFont.italicSystemFont(ofSize: 16)
    }
}
AppDelegate.swift
func application(_ application: UIApplication, willFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
    LMUIComponents.shared.videoTextCell = CustomVideoTextCell.self
    // ...
    return true
}